CVE-2021-38121

HIGHNVD 8.38.3—

8.3

Insufficient or weak TLS protocol version identified in Advance authentication client server communication when specific service is accessed between devices. This issue affects NetIQ Advance Authentication versions before 6.3.5.1

CVSS v3: 8.3
EG Score: 8.3(medium)
EPSS: 12.8%
KEV: Not listed

Published

August 28, 2024

Last Modified

September 13, 2024

References (1)

security@opentexthttps://www.netiq.com/documentation/advanced-authentication-63/advanced-authentication-releasenotes-6351/data/advanced-authentication-releasenotes-6351.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-326Inadequate Encryption Strength

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
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2026-06-01 13:50 UTCepss_batch
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2026-05-31 22:29 UTCepss_batch
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2026-05-29 13:42 UTCepss_batch
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2026-05-28 13:43 UTCepss_batch
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2026-05-27 13:39 UTCepss_batch
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2026-05-26 07:17 UTCepss_batch
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2026-05-26 07:17 UTCepss_batch
2026-05-23 11:54 UTCEG score recompute

Frequently asked(5)

What is CVE-2021-38121?

CVE-2021-38121 is a high vulnerability published on August 28, 2024. Insufficient or weak TLS protocol version identified in Advance authentication client server communication when specific service is accessed between devices. This issue affects NetIQ Advance Authentication versions before 6.3.5.1

When was CVE-2021-38121 disclosed?

CVE-2021-38121 was first published in the National Vulnerability Database on August 28, 2024, with the most recent update on September 13, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-38121 actively exploited?

CVE-2021-38121 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-38121?

CVE-2021-38121 has a CVSS v3 base score of 8.3 (NVD).

How do I remediate CVE-2021-38121?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-38121, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-38121

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-38121?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)